seafloor

noun

sea·​floor ˈsē-ˌflȯr How to pronounce seafloor (audio)
variants or less commonly sea floor
plural seafloors also sea floors
: the floor of a sea or ocean : seabed
The Earth's crust, in this view, is divided into several immense plates that make up the continents and seafloors, and that all float on a hot, plastic, subterranean "mantle."Walter Sullivan

Examples of seafloor in a Sentence

Recent Examples on the Web
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The devices will remain on the seafloor, recording the ocean soundscape, until the ice melts again next summer. Stephanie Hanes, The Christian Science Monitor, 12 Dec. 2024 The ship is operated through the non-profit Ocean Exploration Trust, an organization devoted to seafloor exploration. Amanda Kooser, Forbes, 6 Dec. 2024 Related article Scientists make surprise discovery of life in the seafloor’s ‘underworld’ Airborne microplastics have been found all over the globe, even in the Arctic and other remote locations. Taylor Nicioli, CNN, 17 Oct. 2024 When the seafloor is covered in algae, larval coral has nowhere to develop. Benji Jones, Vox, 8 Oct. 2024 See all Example Sentences for seafloor 

Word History

First Known Use

1853, in the meaning defined above

Time Traveler
The first known use of seafloor was in 1853

Dictionary Entries Near seafloor

Cite this Entry

“Seafloor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seafloor. Accessed 22 Dec. 2024.

Kids Definition

seafloor

noun
sea·​floor -ˌflō(ə)r How to pronounce seafloor (audio)
-ˌflȯ(ə)r
: seabed

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